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Study of QCD Thermodynamics at Finite Density by Taylor Expansion

Shinji Ejiri, Frithjof Karsch, Edwin Laermann, Olaf Kaczmarek, Christian Schmidt, Simon J. Hands Orcid Logo, Chris Allton Orcid Logo

Progress of Theoretical Physics Supplement, Volume: 153, Pages: 118 - 126

Swansea University Author: Chris Allton Orcid Logo

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DOI (Published version): 10.1143/PTPS.153.118

Abstract

We discuss the phase structure and the equation of state for QCD at non-zero temperature and density. Derivatives of $\ln Z$ with respect to quark chemical potential $\mu_q$ up to fourth order are calculated for 2-flavor QCD, enabling estimates of the pressure, quark number density and associated su...

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Published in: Progress of Theoretical Physics Supplement
ISSN: 0375-9687
Published: 2004
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28434
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Abstract: We discuss the phase structure and the equation of state for QCD at non-zero temperature and density. Derivatives of $\ln Z$ with respect to quark chemical potential $\mu_q$ up to fourth order are calculated for 2-flavor QCD, enabling estimates of the pressure, quark number density and associated susceptibilities as functions of $\mu_q$ via a Taylor series expansion. Also, the phase transition line for 2 and 3-flavor QCD and the critical endpoint in the $(T, \mu_q)$ plane are investigated in the low density regime.
College: College of Science
Start Page: 118
End Page: 126